244538421 has 32 divisors (see below), whose sum is σ = 353808000. Its totient is φ = 149667840.

The previous prime is 244538419. The next prime is 244538423. The reversal of 244538421 is 124835442.

It is an interprime number because it is at equal distance from previous prime (244538419) and next prime (244538423).

It is not a de Polignac number, because 244538421 - 2¹ = 244538419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244538423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544405 + ... + 544853.

It is an arithmetic number, because the mean of its divisors is an integer number (11056500).

Almost surely, 2^244538421 is an apocalyptic number.

It is an amenable number.

244538421 is a deficient number, since it is larger than the sum of its proper divisors (109269579).

244538421 is a wasteful number, since it uses less digits than its factorization.

244538421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its digits is 30720, while the sum is 33.

The square root of 244538421 is about 15637.7242909574. The cubic root of 244538421 is about 625.3392683885.

The spelling of 244538421 in words is "two hundred forty-four million, five hundred thirty-eight thousand, four hundred twenty-one".